Question
The average of 18 numbers is 40, and the average of the
first 9 numbers is 45. Find the average of the remaining 9 numbers.Solution
ATQ, Sum of 18 numbers = 18 × 40 = 720 Sum of first 9 numbers = 9 × 45 = 405 Now, sum of last 9 numbers = (720 – 405) = 315 Therefore, average of last 9 numbers = 315/9 = 35
More Average Questions
18% of 200 - 16% of 150 = ?
(12% of 1250 + 85% of 400) x 10 = ?2
What is (0.08% of 0.008% of 8)1/9 ?
1540 ÷ 7 - 184 ÷ 8 = ?
{(81% of 800 + 28 × 4) – 27 × ?} = 11 × 20
? ÷ 62 × 12 = 264
- Evaluate: 156 ÷ 12 × 4 + 180 – 40% of 350
25% of 1000 + 10% of 150 – 22 × ? = 45
- Find the simplified value of the given expression.
672 ÷ 28 × 24 + 363 – 309 =?
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